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Sammy is a character with a narrow point of view. We recognize that he is an angst ridden teenager channeling Holden Caulfield. So no, his judgements aren't accurate because he doesn't really know any of these people, he merely speculates based on his own fantasies and take on reality. His points may have merit but in the end, each person in this place has a story. I also think his raging hormones are getting in the way of rational thought. Lengel would see the status-quo as essential to both his business and the way he sees the world. The girls would not be beauties of counter culture rather than young girls who should put some clothes on.